High carriage of ESBL-producing Enterobacteriaceae associated with sexual activity among men who have sex with men

Int J Antimicrob Agents. 2021 Mar;57(3):106276. doi: 10.1016/j.ijantimicag.2021.106276. Epub 2021 Jan 9.

Abstract

Background: Extended-spectrum β-lactamase Enterobacteriaceae (ESBL-E) may be sexually transmitted. Men who have sex with men (MSM) have different sexual behaviour than the general population, and thus may be at risk for ESBL-E carriage. This study determined the prevalence of ESBL-E carriage and its association with sexual behaviour among MSM in Amsterdam, The Netherlands.

Materials and methods: In total, 583 HIV-positive and HIV-negative MSM from the Amsterdam Cohort Study were screened for rectal ESBL-E carriage between April and December 2018. Participants completed a self-administered questionnaire on (sexual) behaviour and risk factors for antimicrobial resistance. The proportion of the study population with ESBL-E carriage was compared by number of sexual partners using logistic regression, and across clusters of sexual behaviours with steady and casual partners, separately, using latent class analyses; all results were adjusted for recent use of antibiotics, travel and hospitalization.

Results: Overall, 16.3% [95% confidence interval (CI) 13.4-19.5] of the study population tested positive for ESBL-E. The odds of ESBL-E carriage increased as number of sexual partners increased [adjusted odds ratio per ln(partner+1), 1.57, 95% CI 1.26-1.94; P<0.001]. There was no association between ESBL-E carriage and sexual behaviour with steady partner(s). Compared with participants in the 'no sex with casual partner(s)' cluster, adjusted odds of being ESBL-E positive were 2.95-fold higher (95% CI 1.52-5.80) for participants in the 'rimming and frottage' cluster (P=0.001) and 2.28-fold higher (95% CI 0.98-5.31) for participants in the 'toy use and fisting' cluster (P=0.056).

Conclusions: The prevalence of ESBL-E in MSM is higher compared with the overall Dutch population, likely due to sexual transmission with casual partners. This implies that sexually active MSM should be considered a risk group for ESBL-E carriage.

Keywords: Antimicrobial resistance; ESBL; Men who have sex with men; Sexual activity; Transmission.

MeSH terms

  • Adult
  • Anal Canal / microbiology
  • Anti-Bacterial Agents / pharmacology
  • Bacterial Typing Techniques
  • Carrier State
  • Cohort Studies
  • Disk Diffusion Antimicrobial Tests
  • Enterobacteriaceae / classification*
  • Enterobacteriaceae / drug effects
  • Enterobacteriaceae / isolation & purification
  • Enterobacteriaceae Infections / epidemiology*
  • Enterobacteriaceae Infections / microbiology*
  • Enterobacteriaceae Infections / transmission
  • HIV Infections / epidemiology
  • Homosexuality, Male
  • Humans
  • Male
  • Middle Aged
  • Netherlands / epidemiology
  • Prevalence
  • Risk Factors
  • Sexual Behavior / statistics & numerical data
  • Sexual and Gender Minorities*
  • beta-Lactam Resistance
  • beta-Lactams / pharmacology

Substances

  • Anti-Bacterial Agents
  • beta-Lactams